Optex PT-7LD, Instruction Manual

Page: 29 / 56

When any temperature lower than a preset value is measured, an alarm LED (green) turns on and an
alarm bell (low tone) goes off.
[Setting "Low Limit Temperature for Alarm"]
Enter the setting mode for "Low Limit Temperature for Alarm"
according to the procedure described in page 11. If you have
already set the High Limit Temperature as in page 12, the set-
ting mode for "Low Limit Temperature for Alarm" turns up auto-
matically. The initial set ting is at 0
˚ C.
Press or button in the setting mode to change the
temperature vale, which your need alarm at.
Press SET/ENTER button to set the displayed value as the
Low Limit Temperature for Alarm.
Attention: The "Low Limit Temperature for Alarm" cannot be
set at higher temperature than "High Limit Tempera-
ture for Alarm".
[Turning ON/OFF Alarm Function]
When the Low Limit Temperature setting is completed, the
setting mode to ON/OFF Alarm Function appears. Press
. or button to select ON or OFF.
Press SET/ENTER button to set ON or OFF. While the Alarm
function is OFF, the Alarm function does not work even if the
measuring temperature goes higher than a preset level.
Setting mode for
"High Limit Temperature for Alarm"
(Initial setting: 0 ˚ C)
Setting
–– "Low Limit Temperature for Alarm"
13
Changing the temperature value to 10
˚ C by using / button.
Setting the temperature value with
SET/ENTER button.
Alarm function: ON
Alarm function: OFF
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